单选题The ip pim autorp listener command is used to do which of these？（）Aenable a Cisco router to passively listen to Auto-RP packets without the router actively sending or forwarding any of the packetsBallow Auto-RP packets in groups 224.0.1.39 and 224.0.1.40 to be flooded in dense mode out interfaces configured with the ip pim sparse-mode commandCenable the use of Auto-RP on a routerDconfigure the router as an Auto-RP mapping agent
单选题
The ip pim autorp listener command is used to do which of these？（）
A
enable a Cisco router to passively listen to Auto-RP packets without the router actively sending or forwarding any of the packets
B
allow Auto-RP packets in groups 224.0.1.39 and 224.0.1.40 to be flooded in dense mode out interfaces configured with the ip pim sparse-mode command
C
enable the use of Auto-RP on a router
D
configure the router as an Auto-RP mapping agent
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